User's Manual
ISO 9001:2000 Cert. N°4500/1
Version 1.1 SDT_ARK6_User_Manual_ENG_vATSC Page 64 of 206
Table 14. ITU Modulation: Modulator test modes
Box
Parameter / Control
Description
Admitted Ranges / Values
Test
Test mode
Enables one of the available test modes for RF signal.
None;
CW: non modulated carrier at
centre frequency;
CW AV: non modulated video and
audio carriers;
Test
Video test
Enables one of the available video test signals.
Input video. No test signal;
SMPTE bars;
Horizontal bars;
Red field.
Test
Audio test
Enables one of the available audio test signals.
No audio test;
Test tone. Sin waves at the
selected frequency on left and right
channel. (Left only for mono
modulations)
Test
Tone right [100 Hz]
Set the frequency of the right channel test tone. Base unit is
100Hz.
Base unit 100 Hz;
0 up to 127, 0 up to 12.7 kHz.
Test
Tone left [100 Hz]
Set the frequency of the right channel test tone. Base unit is
100Hz.
Base unit 100 Hz;
0 up to 127, 0 up to 12.7 kHz.
Test
Mute audio enable
Enables the audio carriers’ suppression for test purposes.
Mute audio disabled: audio carries
are transmitted;
Mute audio enabled: audio carriers
are suppressed.